Influence analysis of climate data time-step on the accuracy of HAM simulation

Abstract

Scientific research in the area of building simulations has a great potential and it is continuously developing and advancing. Computer simulations are helpful in many areas of Civil Engineering, such as energy demand, moisture transport, thermal comfort, ventilation etc. Climate data measured by experimental weather station are analyzed in this article. Weather station is located within the University campus and data recorded with a short are used in a non-steady heat-air-moisture simulation. Climate parameters differences caused by the various averaging periods are shown. This differences are also analyzed in term of outdoor surface temperatures calculated with WUFI Pro simulation software.

Obtaining the Short-Wave Radiation Absorptivity Based on the Surface Temperature Measurement and Ham Simulation

“…Other important factors are the detailed material properties [Vertal 2009 and. As it was stated in other works [Juras 2018 and 2019], by dealing with HAM simulation in WUFI, the diffuse solar radiation component is needed. Ratio between direct and diffuse radiation is changing during the day and it influences the calculated and measured surface temperatures.…”

“…Several comparisons with the differences between campus location and national weather forecast institute were made [Staffenova 2014, Jurasova, 2018, which confirmed the differences within the urban area and airport location. Since 2017 the department has a new weather station (WS) with additional possibility to measure the diffuse part of solar radiation and longwave solar radiation by the pyrgeometer [Juras 2018]. For obtaining the measured global solar radiation on vertical surface façade meteorological stations (FAMS) were also used [Juras 2017].…”